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Supervisor：Jiangxi University Of Science And Technology
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Jiangxi Nonferrous Metals Society
ISSN：1674-9669
CN：36-1311/TF
CODEN YJKYA9
Volume 5 Issue 6
Dec.  2014
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ZHANG Lina, XU Bingsheng, CHEN Junwei, WU Yan, XU Hongyan, YUAN Zhangfu. Surface wettability of the microporous ceramic tube and measurement of its porosity[J]. Nonferrous Metals Science and Engineering, 2014, 5(6): 14-20. DOI: 10.13264/j.cnki.ysjskx.2014.06.003
Citation: ZHANG Lina, XU Bingsheng, CHEN Junwei, WU Yan, XU Hongyan, YUAN Zhangfu. Surface wettability of the microporous ceramic tube and measurement of its porosity[J]. Nonferrous Metals Science and Engineering, 2014, 5(6): 14-20. DOI: 10.13264/j.cnki.ysjskx.2014.06.003
shu

Surface wettability of the microporous ceramic tube and measurement of its porosity

  • 1.

    Beijing Key Laboratory for Solid Waste Utilization and Management, Peking University, Beijing 100871, China

  • 2.

    Beijing General Research Institute of Mining & Metallurgy, Beijing 100160, China

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  • Received Date: November 20, 2014
  • Published Date: December 30, 2014
    Graphical Abstract
    • Abstract
  • Pore structure of porous ceramic tube prepared by the hot forming method is studied by mercury method to obtain pore distribution of ceramic membrane. Self-developed three-phase interface analyzer is used to measure the wetting phenomena of tin which is one of the low melting point metals on the alumina ceramic tube membrane at the temperature from 240 ℃ to 640 ℃. It is found that the contact angle of tin on ceramic tube membrane at the range of temperature is greater than 150 °, and the wettability of the both is poor. Based on image processing technology and theoretical calculations, a method to measure penetration rate of droplets on porous surface is proposed and a velocity equation of the droplets which penetrate to the porous ceramic tube is deduced. The oil droplet is tested to find out that the droplet spreads firstly during infiltration process and it maintains its spreading radius for a period of time until it fully penetrates into ceramic tube membrane.
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    • References (17)
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